Keyestudio Micro:bit Mini Smart Robot Car V2 Instructions Manual page 84

What will you see
Send the test code to micro:bit main board, then insert the
micro:bit main board into the robot shield; connect a 18650
battery; then turn the POWER switch ON.
When the left tracking sensor detects an obstacle, the
micro:bit LED matrix will showⅠat the left side;
When the right tracking sensor detects an obstacle, the
micro:bit LED matrix will showⅠat the right side;
When both tracking sensors detect an obstacle, the
micro:bit LED matrix will show a big heart image;
When both tracking sensors do not detect an obstacle, the
micro:bit LED matrix will show a small heart;
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